40138022 has 8 divisors (see below), whose sum is σ = 60239496. Its totient is φ = 20058192.

The previous prime is 40138019. The next prime is 40138031. The reversal of 40138022 is 22083104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×40138022² = 3222121620144968, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40137985 and 40138003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533 + ... + 8975.

It is an arithmetic number, because the mean of its divisors is an integer number (7529937).

Almost surely, 2^40138022 is an apocalyptic number.

40138022 is a deficient number, since it is larger than the sum of its proper divisors (20101474).

40138022 is a wasteful number, since it uses less digits than its factorization.

40138022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10822.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 40138022 is about 6335.4575209688. The cubic root of 40138022 is about 342.3880949346.

The spelling of 40138022 in words is "forty million, one hundred thirty-eight thousand, twenty-two".